एपीए उद्धरण

Ebrahim, I. O., Howard, R. S., Kopelman, M. D., Sharief, M. K., & Williams, A. J. (2002). The hypocretin/orexin system. The Royal Society of Medicine.

शिकागो स्टाइल उद्धरण

Ebrahim, I O., R S. Howard, M D. Kopelman, M K. Sharief, और A J. Williams. The Hypocretin/orexin System. The Royal Society of Medicine, 2002.

एमएलए उद्धरण

Ebrahim, I O., et al. The Hypocretin/orexin System. The Royal Society of Medicine, 2002.